CN103741877A - Lattice anti-shearing device-steel-profiled steel plate-renewable concrete combination beam and production method - Google Patents
Lattice anti-shearing device-steel-profiled steel plate-renewable concrete combination beam and production method Download PDFInfo
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- CN103741877A CN103741877A CN201310743881.1A CN201310743881A CN103741877A CN 103741877 A CN103741877 A CN 103741877A CN 201310743881 A CN201310743881 A CN 201310743881A CN 103741877 A CN103741877 A CN 103741877A
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Abstract
The invention relates to a lattice anti-shearing device-steel-profiled steel plate-renewable concrete combination beam, which belongs to the technical field of building construction. The lattice anti-shearing device-steel-profiled steel plate-renewable concrete combination beam comprises a steel beam, a profiled steel plate, renewable concrete, a lattice anti-shearing device, a transverse reinforcing steel bar and a longitudinal reinforcing steel bar. The lattice anti-shearing device consists of a shear-force connecting piece which is welded onto a steel beam, a lattice transverse bar and a lattice longitudinal bar, which are paved and welded on the upper surface of the shear-force connecting piece. The lattice anti-shearing connecting device is favorable for bearing the shear force in a crack, the stress property of the upper concrete can be adequately exerted, the concrete can be prevented from being damaged caused by the early stress, the bearing capacity of the combination force is improved, and the extension property is good; the combination beam forms a constraining band with the concrete, so that the collective working property of the anti-shear connecting device and the concrete can be greatly improved, the overall stability of the structure is enhanced, and the energy dissipation can be realized.
Description
Technical field
The present invention is a kind of terraced lattice shear resistance system-steel-profiled sheet-regeneration concrete compound beam and the practice, belongs to a kind of compound beam and preparation method thereof.
Background technology
Steel-profiled sheet concrete combination beam is a kind of new structure member, due to its reasonable stress and easy construction, has more and more been applied in recent years in the building cover structure of high-rise steel structure building and industrial premises.This compound beam has been given full play to the high and high material behavior of concrete crushing strength of steel tensile strength, the advantage such as has from heavy and light, bearing capacity is high, rigidity is large, ductility is good, anti-seismic performance is good.Profiled sheet compound beam not only has advantages of that cast-in-situ steel reinforced concrete beam has, and can play template and operation platform effect in the construction stage, and overall economic efficiency is remarkable.The use of regeneration concrete is the effective way of rationally utilizing building waste, and there are to material impact in the friendly type of creation environment, conservation-minded society.
Shear connector has the effect of bearing steel and concrete interface shearing in combining structure, and the shear-carrying capacity of shear connector directly affects the supporting capacity of combining structure.Ladder lattice shear resistance system has played and has transmitted the effect that distributes interface shearing, effectively reduces slippage; Ladder lattice shear resistance system and concrete form constraint band, have greatly improved the cooperative performance of shearing resistance linkage and concrete, have strengthened the resistance to overturning of structure, are conducive to bring into play the effect of energy-dissipating and shock-absorbing.
Summary of the invention
The present invention proposes a kind of terraced lattice shear resistance system-steel-profiled sheet regeneration concrete compound beam and preparation method thereof, under cost-saving prerequisite, realize the reasonable utilization of discarded concrete, improve the globality of shearing resistance linkage, control crack developing, give full play to concrete compression performance, avoid the too early compression damage of concrete, thereby improve the supporting capacity of compound beam.
The technical solution used in the present invention is:
Be with terraced lattice shear resistance system-steel-profiled sheet-regeneration concrete compound beam to comprise girder steel 1, profiled sheet 2, regeneration concrete 3, terraced lattice shear resistance system, transverse reinforcement 4 and longitudinal reinforcement 5; Girder steel 1 two ends are fixed on post; Profiled sheet 2 is fixed on girder steel 1 by shear connector 6; Terraced lattice horizontal bar 7 and the vertical muscle 8 of terraced lattice are laid and welded to shear connector 6 upper surfaces; Arrange transverse reinforcement 4 and longitudinal reinforcement 5 and build regeneration concrete 3 and form terraced lattice shear resistance system-steel-profiled sheet regeneration concrete compound beam.Wherein terraced lattice shear resistance system is comprised of with terraced lattice horizontal bar 7 and the vertical muscle 8 of terraced lattice of laying and be welded on shear connector 6 upper surfaces the shear connector 6 being welded on girder steel 1.
Described shear connector 6 adopts peg or high-strength bolt.
Described shear connector 6 adopts welding technology to be welded on girder steel 1 during for peg, is about to shear connector 6 and sees through profiled sheet 2 and be directly welded on girder steel 1, and weld seam should meet corresponding technical requirements.
According to technical scheme of the present invention, this ladder lattice shear resistance system-steel-profiled sheet-regeneration concrete compound beam preparation method, its making step is as follows:
1) on girder steel 1, lay profiled sheet 2, and arrange and shore below profiled sheet 2;
2) after profiled sheet 2 has been laid, in relevant position, arrange shear connector 6, be about to profiled sheet 2 fixing with girder steel 1;
3) along shear connector 6 tops of girder steel 1 direction, arrange the horizontal steel 7 of terraced lattice, and this steel bar welding is connected to bottom shear connector 6; Along arrange the vertical muscle 9 of the terraced lattice of welding above shear connector 6 perpendicular to girder steel 1 direction, form terraced lattice shear resistance system;
4) arrange transverse reinforcement 4 and longitudinal reinforcement 6, by its colligation in terraced lattice shear resistance system top;
5) to shearing resistance linkage, reinforcement placement and shore check and accept errorless after, can above profiled sheet 2, build regeneration concrete 3;
6) sprinkle water after regeneration concrete 3 final set maintenance be no less than 7 days;
7) after reaching design compressive strength, regeneration concrete 3 intensity tear dismountable shoring open.
Beneficial effect of the present invention is as follows:
The use of regeneration concrete can be played the effect economizing on resources with protection of the environment, has obvious economic benefit and environmental benefit.Ladder lattice shear resistance system has played and has transmitted the effect that distributes interface shearing, effectively reduces slippage.Under extraneous load action, there is shearing slip and be accompanied by the generation of splitting crack and extend upward in concrete and peg contact surface, ladder lattice shear resistance system is conducive to bear the shearing at place, crack, and control crack and further carry out, give full play to top concrete compression performance, avoid the too early compression damage of concrete, thereby improve the supporting capacity of compound beam, make it have good ductility.Ladder lattice shear resistance system and concrete form constraint band, have greatly improved the cooperative performance of shear resistance system and concrete, have strengthened the resistance to overturning of structure, are conducive to bring into play the effect of energy-dissipating and shock-absorbing.Peg and high-strength bolt belong to flexible shear connecting elements, single load bearing, and ductility is better, and has the simple advantage of construction.
Accompanying drawing explanation
Fig. 1 is terraced lattice shear resistance system-steel-profiled sheet-regeneration concrete combined beam structure schematic diagram;
Fig. 2 is the structural representation of 1-1 section in Fig. 1;
Fig. 3 is terraced lattice shear resistance system-steel-profiled sheet-regeneration concrete combined beam structure stereogram.
Wherein: 1-girder steel, 2-profiled sheet, 3-regeneration concrete, 4-transverse reinforcement, 5-longitudinal reinforcement, 6-shear connector, 7-ladder lattice horizontal bar, the vertical muscle of 8-ladder lattice.
The specific embodiment
As shown in Figure 1, be with terraced lattice shear resistance system-steel-profiled sheet-regeneration concrete compound beam to comprise: girder steel 1, profiled sheet 2, regeneration concrete 3, terraced lattice shear resistance system, transverse reinforcement 4 and longitudinal reinforcement 5.The form of profiled sheet 2 has open-type, closed type and reducing type, adopts reducing type profiled sheet in the present embodiment; Shear connector 6 can adopt peg and high-strength bolt, and in the present embodiment, terraced lattice shear resistance system adopts peg as shear connector 6.Being with terraced lattice shear resistance system and way is above girder steel 1, to lay profiled sheet 2, by peg, profiled sheet 2 is fixedly welded on girder steel 1, on peg, lay and weld the vertical muscle 8 of terraced lattice horizontal bar 7 and terraced lattice connect as a whole, i.e. terraced lattice shear resistance system; Lay transverse reinforcement 4 and be connected with longitudinal reinforcement 5 colligation, check and accept errorless after-pouring regeneration concrete 3.
Ladder lattice shear resistance system-steel-profiled sheet-regeneration concrete compound beam is combined into an integral body by welded reinforcement by the shear connector of dispersion, this device is conducive to control carrying out of distress in concrete, give full play to top concrete compression performance, avoid the too early compression damage of concrete, thereby improve the supporting capacity of compound beam, make it have good ductility.
The shearing resistance of ladder lattice connects device and concrete wherein forms good confined concrete band, has greatly improved the cooperative performance of shearing resistance linkage and concrete, has strengthened the resistance to overturning of structure, is conducive to bring into play the effect of its energy-dissipating and shock-absorbing.
According to technical scheme of the present invention, this ladder lattice shear resistance system-steel-profiled sheet-regeneration concrete compound beam preparation method, its making step is as follows:
1) on girder steel 1, lay profiled sheet 2, and arrange and shore below profiled sheet 2;
2) after profiled sheet 2 has been laid, in relevant position, arrange shear connector 6, be about to profiled sheet 2 fixing with girder steel 1;
3) along shear connector 6 tops of girder steel 1 direction, arrange the horizontal steel 7 of terraced lattice, and this steel bar welding is connected to bottom shear connector 6; Along arrange the vertical muscle 9 of the terraced lattice of welding above shear connector 6 perpendicular to girder steel 1 direction, form terraced lattice shear resistance system;
4) arrange transverse reinforcement 4 and longitudinal reinforcement 6, by its colligation in terraced lattice shear resistance system top;
5) to shearing resistance linkage, reinforcement placement and shore check and accept errorless after, can above profiled sheet 2, build regeneration concrete 3;
6) sprinkle water after regeneration concrete 3 final set maintenance be no less than 7 days;
7) after reaching design compressive strength, regeneration concrete 3 intensity tear dismountable shoring open.
Be more than exemplary embodiments of the present invention, enforcement of the present invention is not limited to this.
Claims (4)
1. terraced lattice shear resistance system-steel-profiled sheet-regeneration concrete compound beam comprises: girder steel (1), profiled sheet (2), regeneration concrete (3), terraced lattice shear resistance system, transverse reinforcement (4) and longitudinal reinforcement (5); Girder steel (1) two ends are fixed on post; Profiled sheet (2) is fixed on girder steel (1) by shear connector (6); Terraced lattice horizontal bar (7) and the vertical muscle (8) of terraced lattice are laid and welded to shear connector (6) upper surface; Arrange transverse reinforcement (4) and longitudinal reinforcement (5) and build regeneration concrete (3) and form terraced lattice shear resistance system-steel-profiled sheet regeneration concrete compound beam.Wherein terraced lattice shear resistance system is by being welded in the shear connector (6) on girder steel (1) and laying and be welded on the terraced lattice horizontal bar (7) of shear connector (6) upper surface and the vertical muscle (8) of terraced lattice forms.
2. according to the terraced lattice shear resistance system-steel-profiled sheet-regeneration concrete of claim 1 compound beam, it is characterized in that: described shear connector (6) adopts peg or high-strength bolt.
3. according to the terraced lattice shear resistance system-steel-profiled sheet-regeneration concrete of claim 1 compound beam, it is characterized in that: described shear connector (6) adopts welding technology to be welded on girder steel (1) during for peg, be about to shear connector (6) and be directly welded on girder steel (1) above through profiled sheet (2), weld seam should meet corresponding technical requirements.
4. terraced lattice shear resistance system-steel-profiled sheet-regeneration concrete compound beam preparation method according to claim 1, is characterized in that: its making step is as follows:
1) at the upper profiled sheet (2) of laying of girder steel (1), and arrange and shore in profiled sheet (2) below;
2) after profiled sheet (2) has been laid, in relevant position, arrange shear connector (6), be about to profiled sheet (2) fixing with girder steel (1);
3) along shear connector (6) top of girder steel (1) direction, arrange the horizontal steel of terraced lattice (7), and this steel bar welding is connected to bottom shear connector (6); Along arranging in shear connector (6) top perpendicular to girder steel (1) direction, form terraced lattice shear resistance system by the vertical muscle (9) of the terraced lattice of welding;
4) arrange transverse reinforcement (4) and longitudinal reinforcement (6), by its colligation above terraced lattice shear resistance system;
5) to shearing resistance linkage, reinforcement placement and shore check and accept errorless after, can build regeneration concrete (3) in profiled sheet (2) top;
6) sprinkle water after regeneration concrete (3) final set maintenance be no less than 7 days;
7) after reaching design compressive strength, regeneration concrete (3) intensity tears dismountable shoring open.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032892A (en) * | 2014-05-30 | 2014-09-10 | 同济大学 | Regenerated concrete segmented beam and construction method thereof |
| CN104100006A (en) * | 2014-07-07 | 2014-10-15 | 张跃 | Girder and column connecting structure |
| CN106436975A (en) * | 2016-10-26 | 2017-02-22 | 曲周县和盛新型建筑材料有限公司 | Built-in girder shear wall |
| CN106759866A (en) * | 2016-12-27 | 2017-05-31 | 浙江圣鑫建设有限公司 | A kind of lightweight steel frame light gauge cold-formed steel shape wall composite construction building construction system |
| CN110158464A (en) * | 2019-06-03 | 2019-08-23 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of novel shear key combination beam and its construction method |
| CN110952702A (en) * | 2019-12-17 | 2020-04-03 | 长安大学 | Soil-shaped steel beam-concrete combined beam slab system and construction method thereof |
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| CA1222642A (en) * | 1983-04-25 | 1987-06-09 | Jean-Baptiste Schleich | Prefabricated fireproof steel and concrete beam |
| CN2700387Y (en) * | 2004-04-01 | 2005-05-18 | 蔡耀中 | Section steel-concrete composite beam |
| CN2878559Y (en) * | 2006-01-18 | 2007-03-14 | 北京工业大学 | Concrete reinforced bar supported abnormal cross-sectional short-legged shear wall with ladder lattice |
| CN101839033A (en) * | 2010-06-22 | 2010-09-22 | 中国建筑第二工程局有限公司 | Closed-section profiled steel sheet-concrete combined floor and construction method thereof |
| CN102877582A (en) * | 2012-10-16 | 2013-01-16 | 北京工业大学 | Composite floor with steel bar trusses, profiled steel plate and regenerated concrete, and manufacturing method for composite floor |
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Patent Citations (5)
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| CA1222642A (en) * | 1983-04-25 | 1987-06-09 | Jean-Baptiste Schleich | Prefabricated fireproof steel and concrete beam |
| CN2700387Y (en) * | 2004-04-01 | 2005-05-18 | 蔡耀中 | Section steel-concrete composite beam |
| CN2878559Y (en) * | 2006-01-18 | 2007-03-14 | 北京工业大学 | Concrete reinforced bar supported abnormal cross-sectional short-legged shear wall with ladder lattice |
| CN101839033A (en) * | 2010-06-22 | 2010-09-22 | 中国建筑第二工程局有限公司 | Closed-section profiled steel sheet-concrete combined floor and construction method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032892A (en) * | 2014-05-30 | 2014-09-10 | 同济大学 | Regenerated concrete segmented beam and construction method thereof |
| CN104100006A (en) * | 2014-07-07 | 2014-10-15 | 张跃 | Girder and column connecting structure |
| CN106436975A (en) * | 2016-10-26 | 2017-02-22 | 曲周县和盛新型建筑材料有限公司 | Built-in girder shear wall |
| CN106759866A (en) * | 2016-12-27 | 2017-05-31 | 浙江圣鑫建设有限公司 | A kind of lightweight steel frame light gauge cold-formed steel shape wall composite construction building construction system |
| CN106759866B (en) * | 2016-12-27 | 2017-12-01 | 浙江圣鑫建设有限公司 | A kind of lightweight steel frame light gauge cold-formed steel shape wall composite construction building construction system |
| CN110158464A (en) * | 2019-06-03 | 2019-08-23 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of novel shear key combination beam and its construction method |
| CN110952702A (en) * | 2019-12-17 | 2020-04-03 | 长安大学 | Soil-shaped steel beam-concrete combined beam slab system and construction method thereof |
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| CN103741877B (en) | 2016-07-06 |
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